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Common star 19 EP

HD 191502

RA 302.8373° · Dec -28.6296° · star

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Score breakdown

· 5 badges
19 pts · Common
Common 22 pts → Uncommon
  • Toward the galactic centre +8
  • Star +3
  • On the zodiac +3
  • Yellow-white F-type star +3
  • Main-sequence star +2
Total score 19

3 more points to reach Uncommon.

Badges

  • Star · +3
  • Toward the galactic centre · +8
  • On the zodiac · +3
  • Yellow-white F-type star · +3
  • Main-sequence star · +2

Trivia

What it actually is

  • Spectral class. Its spectrum reads F8/G0V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 9.5 you'll want a small backyard telescope, over in Sagittarius.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around July — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 8.1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 723.4 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
3.738
bv
0.498
constellation
Sgr
dist ly
463.2899
luminosity
2.7848
mag
9.5
name
HD 191502
spect
F8/G0V

About HD 191502

HD 191502 is a common star. It lies about 463.3 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 9.5 and has spectral type F8/G0V.

Its spectrum reads F8/G0V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 191502 in the constellation Sgr. At apparent magnitude 9.5, a small backyard telescope will bring it into view.

Like any astronomical target, HD 191502 is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.

Why HD 191502 is a common star

HD 191502 scores 19 points on Spacedle's rarity scale, which places it in the common tier. Another 3 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Toward the galactic centre, On the zodiac, Yellow-white F-type star and Main-sequence star — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.